Add "Replace with 'equals(..., ignoreCase = true)'" inspection

#KT-40016 Fixed

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/.inspection

@@ -0,0 +1 @@
+org.jetbrains.kotlin.idea.inspections.ReplaceWithIgnoreCaseEqualsInspection

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/extension.kt

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun String.test(s: String): Boolean {
+    return <caret>toLowerCase() == s.toLowerCase()
+}

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/extension.kt.after

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun String.test(s: String): Boolean {
+    return equals(s, ignoreCase = true)
+}

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/extension2.kt

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun String.test(s: String): Boolean {
+    return <caret>s.toLowerCase() == toLowerCase()
+}

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/extension2.kt.after

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun String.test(s: String): Boolean {
+    return s.equals(this, ignoreCase = true)
+}

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/notApplicable.kt

@@ -0,0 +1,5 @@
+// PROBLEM: none
+// WITH_RUNTIME
+fun test(a: String, b: String): Boolean {
+    return <caret>a.toLowerCase() != b.toLowerCase()
+}

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/notApplicable2.kt

@@ -0,0 +1,5 @@
+// PROBLEM: none
+// WITH_RUNTIME
+fun test(a: String, b: String): Boolean {
+    return <caret>a == b.toLowerCase()
+}

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/notApplicable3.kt

@@ -0,0 +1,5 @@
+// PROBLEM: none
+// WITH_RUNTIME
+fun test(a: String, b: String): Boolean {
+    return <caret>a.toLowerCase() == b
+}

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/notApplicable4.kt

@@ -0,0 +1,5 @@
+// PROBLEM: none
+// WITH_RUNTIME
+fun test(a: String, b: String): Boolean {
+    return <caret>a.toLowerCase() == b.toUpperCase()
+}

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/nullable.kt

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(a: String?, b: String): Boolean {
+    return <caret>a?.toLowerCase() == b.toLowerCase()
+}

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/nullable.kt.after

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(a: String?, b: String): Boolean {
+    return a.equals(b, ignoreCase = true)
+}

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/nullable2.kt

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(a: String, b: String?): Boolean {
+    return <caret>a.toLowerCase() == b?.toLowerCase()
+}

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/nullable2.kt.after

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(a: String, b: String?): Boolean {
+    return a.equals(b, ignoreCase = true)
+}

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/nullable3.kt

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(a: String?, b: String?): Boolean {
+    return <caret>a?.toLowerCase() == b?.toLowerCase()
+}

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/nullable3.kt.after

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(a: String?, b: String?): Boolean {
+    return a.equals(b, ignoreCase = true)
+}

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/toLowerCase.kt

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(a: String, b: String): Boolean {
+    return <caret>a.toLowerCase() == b.toLowerCase()
+}

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/toLowerCase.kt.after

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(a: String, b: String): Boolean {
+    return a.equals(b, ignoreCase = true)
+}

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/toUpperCase.kt

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(a: String, b: String): Boolean {
+    return <caret>a.toUpperCase() == b.toUpperCase()
+}

idea/testData/inspectionsLocal/replaceWithIgnoreCaseEquals/toUpperCase.kt.after

@@ -0,0 +1,4 @@
+// WITH_RUNTIME
+fun test(a: String, b: String): Boolean {
+    return a.equals(b, ignoreCase = true)
+}